Any batmaker should offer something of a bat fitting, but ultimately for me it will come down to the individual and what suits their eye & feel. A lot is made of certain profiles for hard pitches, low bouncing pitches, front foot play, back foot play etc etc. But for me, there's no point someone telling you you need a low middle because you play on low bouncing pitches, if you don't like the look or feel of a low middle bat.
In my experience of making bats and having people visit the workshop, people are confused when they come in and often have something which they've read about online in their head. Yet once you show them that and they feel it, they move to something else. Not always, but my point is you're the one using it and so you have to be happy with it. If you're not, you'll never be confident with it and won't enjoy using it.
Visit some shops, or select a few batmakers you'd like to potentially buy from and visit them. Talk about options, handle shape etc and get something made you're 100% invested in. Then use it and don't overthink it!